Jennings told cops that driver Mohamed Ammar locked him in the cab when he refused to pay an “incredibly high” $294 fare — not the $204 the cabby claimed — when they pulled up to his Darien home.

As the money dispute unfolded on Dec. 22, the cabby threatened to bring him back to the city, Jennings told cops.

“At this point, I began to become afraid that he intended to take me back to New York — and the fear of potentially being dropped in any number of dangerous places began to concern me as well,” Jennings said.

Jennings said the car sped recklessly toward I-95. That’s when he reached into his briefcase for his cellphone to call for help, he told cops, and instead took out a small penknife.

“At no point did I attempt to make contact with the driver” with the knife or otherwise, Jennings said.